La sucursal bancària obre avui.

Catalan usually uses the definite article more often than English. So la means the, and la sucursal bancària means the bank branch.

Also, sucursal is a feminine singular noun, so it takes the feminine singular article la.

Because bancària is an adjective describing sucursal, and adjectives in Catalan usually agree in gender and number with the noun they modify.

• sucursal = feminine singular
• so the adjective must also be feminine singular: bancària

Compare:

• sucursal bancària = bank branch
• centre bancari = banking center / bank center

The adjective changes depending on the noun it describes.

Bancària means banking or related to a bank. It comes from bancari / bancària, an adjective based on banc meaning bank.

So sucursal bancària literally means something like banking branch, but in natural English we say bank branch.

In Catalan, adjectives often come after the noun, much more often than in English.

So:

• sucursal bancària = literally branch banking
• natural English: bank branch

This is very normal in Catalan. English speakers often expect the adjective first, but Catalan commonly places it after the noun.

Obre is the third-person singular present tense of the verb obrir, meaning to open.

So:

• jo obro = I open
• tu obres = you open
• ell/ella obre = he/she/it opens

Here, the subject is la sucursal bancària, which is singular, so obre is the correct form.

In this sentence, obre means opens.

So La sucursal bancària obre avui means the branch opens today.

If you wanted to say is open, Catalan would usually use estar plus an adjective:

• La sucursal bancària està oberta avui = The bank branch is open today

That is an important difference:

• obre = opens
• està oberta = is open

Avui means today. It is an adverb of time.

It tells you when the opening happens:

• obre avui = opens today

There is no need for a preposition like on or in. Catalan simply uses avui by itself, just like English uses today.

Yes. Catalan word order is flexible, especially with adverbs like avui.

You could also say:

• Avui obre la sucursal bancària.

This still means The bank branch opens today, but it puts more focus on today.

The original version, La sucursal bancària obre avui, is a neutral and very natural order.

The written accent in bancària shows where the stress goes: ban-CÀ-ri-a.

The accent mark tells you that the stressed syllable is cà.

Without getting too technical, that accent helps you pronounce the word correctly and distinguishes the normal stress pattern.

Sometimes in certain contexts, yes, but branch is the best match here.

Sucursal usually means a branch of a company, bank, or business. For a bank, bank branch is the most natural translation.

So:

• sucursal = branch
• sucursal bancària = bank branch

By itself, the sentence can suggest either one, depending on context.

• It could mean the branch opens today for the first time.
• It could also mean the branch is opening today as part of its normal schedule.

If Catalan speakers want to make the meaning clearer, they might add more context. For example:

• La sucursal bancària inaugura avui = The bank branch opens today for the first time / is inaugurated today
• La sucursal bancària obre avui a les 9 = The bank branch opens today at 9

So obre avui is grammatically simple, but context decides the exact nuance.